Tap-wrench



(No Model.) l

' M. s. BROOKS.

IAP WRENCH No. 295,904. Patented Api*. 1,- 1884.

7 J41. @Mmu J 15mm v 64mm;

UNITED STATES "PATENT OFFICE.

MERRITT S. BROOKS, OF CHESTER, CONNECTICUT.

TAP-WRENCH.

SPECIFICATION forming part of Letters Patent No. 295,904, dated .April l, 1884-.

Application filed January 30, 1884. (No model.)

To all whom-it may concern:

Be it known that I, MERRITT S. BRooKs, of Chester, in the county of Middlesex and State of Connecticut, have invented certain new and useful Improvementsin Tap-\Vrenohes; and I do hereby declare that the following is a full, clear, and exact description thereof, whereby a person skilled in the art can make and use the same, reference being had to the accompanying drawings, and to the letters of ,reference marked thereon.

Like letters in the figures indicate the same parts. I

Figure 1 is a plan view of my improvement, showing a tap held in place by the clamp bolts. Fig. 2 is a view in horizontal section of the wrench-stock, showing the position of the bolts when holding a small tap.

The object of my invention is to provide a and efficient inoperation and of cheap construction; and it consists in a stock having in a plane at right angles to, the tap-socket, and at angles with each other, a plural numberpreferably twoof clamp screws or bolts that project into the socket in the stock and present clampingfaces of different widths on adjacent angular faces of the socket-a peculiarity that enables it to grasp various sizes or diameters of taps.

In the accompanying drawings, the letter a denotes a stock, usually of metal, as steel,with the handles a, and a central socket, b, angular in outline, in which the head of a tap, c, 5 is held by means of 'the'clamp-screws d and e.

' device to various diameters of taps, thelarger wrench for holding taps that shall be simple.

In the form shown the socket b is rectangular, and the clamp -screws are arranged in threaded sockets at an angle of forty five degrees with the axis of the stock, and in a plane at right angles to the axis of a tap when held 0 in the socket. One of these. screws, d, has a bearing-face of nearly the full width of the tapsOc-ket, into which it may be projected by rotating it; but the other, e, of substantially the same diameter, for the purpose of securing 5 strength of construction, is so arranged that its bearing or clamping face projects but partly across the socket 'widthwise. This peculiar arrangement of the clamp screws adapts the of which are held as shown in Fig. 1, and the smaller as shown in the sectional view in Fig.

2, the screw 6 projecting across the path of and under the face of screw d.

I claim as my invention 1. As an improved article of manufacture, a tap-wrench consisting of a wrench-stock having an angular socket, and bearing clampscrews, whose clamping-faces are of different widths, within the socket, all substantially as described.

2. The combination of a wrench-stock, a, having socket b, and bearing the clamp-screws d and 6, whose clamping-faces are of different widths, all substantially as described.

MERRITT S. BROOKS.

Witnesses:

WM. H. SULLIVAN, HENRY O. SoovILL. 

